Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and links to their rpeorts go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html


Study Counts

Type Study_count
Total_Studies 2102
interventional 1448
Observational 618
Registry 36

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type Study_Count
Drug|placebo 427
Drug 325
Other 188
Device 141
Behavioral 128
Procedure 75
Diagnostic Test 15
Biological 14
Device|Drug 14
Device|Other 12
Device|Drug|placebo 11
Behavioral|Other 9
Dietary Supplement 9
Biological|placebo 8
Dietary Supplement|placebo 8
Device|Procedure 6
Other|placebo 6
Drug|Other 5
Behavioral|Drug 4
Drug|Radiation 4
Biological|Drug 3
Drug|Procedure 3
Other|Procedure 3
Radiation 3
Combination Product 2
Device|placebo 2
Dietary Supplement|Drug 2
Drug|Other|placebo 2
Behavioral|Biological|Diagnostic Test 1
Behavioral|Device 1
Behavioral|Device|Procedure 1
Behavioral|Dietary Supplement|placebo 1
Behavioral|Drug|placebo 1
Behavioral|Procedure 1
Combination Product|Drug|placebo 1
Combination Product|placebo 1
Device|Diagnostic Test 1
Device|Drug|Other 1
Device|Drug|Procedure 1
Device|Other|Radiation 1
Diagnostic Test|Procedure 1
Dietary Supplement|Other 1
Drug|Genetic|Procedure 1
Drug|Other|Procedure 1
Drug|placebo|Procedure 1
Drug|placebo|Radiation 1
placebo 1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country Study_Count
United States 346
NA 121
United Kingdom 79
Germany 71
Canada 68
China 46
France 43
Brazil 31
Spain 27
Netherlands 26
Belgium 23
Italy 22
Denmark 21
Japan 19
Norway 18
Switzerland 17
Turkey 15
United States|Canada 13
Australia 11
Kyrgyzstan 10
Sweden 10
Israel 9
Taiwan 9
Poland 8
Austria 7
Egypt 7
India 7
Korea, Republic of 6
Thailand 6
Hong Kong 5
Portugal 5
Tunisia 5
United States|Germany 4
United States|Puerto Rico 4
Greece 3
Ireland 3
Netherlands|United Kingdom 3
New Zealand 3
Singapore 3
United States|Australia|Canada|New Zealand 3
United States|Australia|New Zealand 3
Argentina 2
Australia|New Zealand 2
Bangladesh 2
Belgium|Netherlands 2
Colombia 2
Germany|Spain|United Kingdom 2
Germany|Switzerland 2
Hungary 2
Indonesia 2
Japan| 2
Pakistan 2
Russian Federation 2
Saudi Arabia 2
Slovenia 2
Sweden|United Kingdom 2
United States|Argentina|Belgium|Canada|Chile|China|France|Germany|Italy|Japan|Korea, Republic of|Poland|Russian Federation|Spain|United Kingdom 2
United States|United Kingdom 2
Andorra|Austria|Belgium|Bulgaria|Czech Republic|Denmark|France|Germany|Hungary|Italy|Netherlands|Poland|Romania|Russian Federation|Spain|United Kingdom 1
Argentina|Australia|Belgium|Brazil|Denmark|Germany|India|Philippines|United Kingdom 1
Argentina|Australia|Canada|Chile|Czechia|France|Greece|Hungary|Korea, Republic of|Netherlands|Russian Federation|South Africa|United Kingdom 1
Argentina|Australia|France|Germany|Italy|Japan|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Spain 1
Argentina|Australia|Germany|India|United Kingdom| 1
Argentina|Brazil|Bulgaria|Chile|Germany|Korea, Republic of|Slovakia|Spain 1
Argentina|Brazil|Canada|Croatia|Czech Republic|Denmark|Finland|Germany|Hong Kong|India|Italy|Korea, Republic of|Malaysia|Norway|Philippines|South Africa|Spain|Sweden|Thailand|Ukraine 1
Argentina|Brazil|Canada|Czech Republic|Denmark|Finland|Germany|Hong Kong|India|Italy|Korea, Republic of|Malaysia|Norway|Philippines|Romania|Russian Federation|South Africa|Spain|Sweden|Thailand 1
Argentina|Chile|China|Taiwan 1
Argentina|Chile|Colombia|Czech Republic|Denmark|Ecuador|Egypt|Estonia|France|Germany|Hungary|Israel|Italy|Korea, Republic of|Latvia|Lithuania|Netherlands|Peru|Romania|Russian Federation|Slovakia|Spain|Switzerland|Turkey|United Kingdom 1
Argentina|Chile|Czechia|Germany|Hungary|Norway|Romania|Russian Federation|Spain|Sweden 1
Argentina|Chile|New Zealand|South Africa 1
Argentina|Colombia|Croatia|Estonia|Hungary|India|Israel|Korea, Republic of|Latvia|Mexico|Panama|Poland|Russian Federation|Serbia|Slovenia|Turkey|United Kingdom 1
Argentina|Colombia|Italy|Malaysia|Mexico|Netherlands|Spain|Switzerland|United Kingdom 1
Argentina|France|Germany|Italy|Norway|Russian Federation|Ukraine 1
Argentina|Mexico|Russian Federation|Ukraine 1
Australia|Austria|Belgium|Brazil|Canada|Denmark|France|Germany|Greece|Hungary|Israel|Italy|Korea, Republic of|Netherlands|Poland|Russian Federation|Slovakia|South Africa|Spain|Turkey|United Kingdom 1
Australia|Austria|Canada|France|Germany 1
Australia|Austria|Canada|France|Hungary|Italy|Netherlands|Poland|Portugal|Russian Federation|South Africa|Spain|Switzerland|United Kingdom 1
Australia|Belgium|Brazil|Bulgaria|China|Denmark|France|Germany|Greece|Hungary|Italy|Netherlands|New Zealand|Philippines|Poland|Russian Federation|South Africa|Spain|Taiwan|Tunisia|Turkey|Ukraine|United Kingdom 1
Australia|Belgium|Canada|Czechia|Denmark|Germany|Greece|Ireland|Israel|Italy|Poland|Portugal|Spain|United Kingdom 1
Australia|Belgium|Canada|France|Germany|Italy|Spain|Turkey 1
Australia|Bulgaria|Germany|Netherlands|New Zealand|Romania 1
Australia|Canada 1
Australia|Canada|Denmark|France|Ireland|Netherlands|New Zealand|United Kingdom 1
Australia|Canada|France|Germany|Hungary|Poland|Slovakia|Spain|Sweden 1
Australia|Chile|New Zealand 1
Australia|China|India 1
Australia|China|Korea, Republic of|New Zealand|Taiwan 1
Australia|Czech Republic|Poland|Russian Federation 1
Australia|Czechia|Denmark|Finland|France|Greece|Hungary|Norway|Poland|Portugal|Russian Federation|Spain 1
Australia|Germany|Netherlands|New Zealand|Poland|South Africa|Spain 1
Austria|Belgium|Bulgaria|Croatia|Czech Republic|Denmark|Finland|France|Germany|Hungary|Italy|Korea, Republic of|Netherlands|Poland|Romania|Russian Federation|Slovakia|South Africa|Spain|Sweden|Ukraine|United Kingdom 1
Austria|Belgium|Canada|France|Germany|Italy|Netherlands|South Africa|Spain|United Kingdom 1
Austria|Belgium|Canada|Germany|Russian Federation 1
Austria|Belgium|Czech Republic|Denmark|Estonia|Germany|Greece|Italy|Latvia|Lithuania|Netherlands|Norway|Romania|Russian Federation|Slovakia|Slovenia|Spain|Sweden|Ukraine|United Kingdom| 1
Austria|Belgium|Denmark|France|Germany|Netherlands|South Africa|Sweden 1
Austria|Belgium|France|Germany|Netherlands|United Kingdom 1
Austria|Bulgaria|Canada|Czech Republic|France|Germany|Hungary|Italy|Lithuania|Netherlands|Poland|South Africa|Spain|United Kingdom 1
Austria|Denmark|Netherlands|Norway|Sweden 1
Austria|France 1
Austria|France|Germany|Hungary|Italy|Spain|United Kingdom 1
Austria|France|Germany|Israel 1
Belgium|Bulgaria|Finland|Germany|Hungary|Israel|Poland|Romania|Russian Federation|Sweden 1
Belgium|Bulgaria|Greece|Hungary|Ireland|Russian Federation|Slovakia|Spain|Turkey|United Kingdom 1
Belgium|Canada|Germany|Netherlands 1
Belgium|Canada|Germany|Spain|United Kingdom 1
Belgium|Czech Republic|Denmark|Germany|Hungary|Netherlands|Spain|Sweden 1
Belgium|Czech Republic|Estonia|Germany|Hungary|Korea, Republic of|Lithuania|Norway|Spain 1
Belgium|Denmark|Finland|Germany|Netherlands 1
Belgium|Denmark|Germany|Hungary 1
Belgium|Denmark|Netherlands|Romania|Russian Federation 1
Belgium|Finland|France|Germany|Italy|Netherlands|Spain|Sweden|United Kingdom 1
Belgium|France|Germany|Italy|Philippines|Poland|Russian Federation|Spain|Ukraine 1
Belgium|France|Germany|Netherlands|Portugal|Spain 1
Belgium|France|Japan 1
Belgium|Germany 1
Belgium|Greece|Netherlands|Switzerland|United Kingdom 1
Belgium|Italy|Netherlands 1
Belgium|Sweden 1
Bulgaria 1
Bulgaria|China|Czechia|Estonia|Germany|Greece|Hungary|Italy|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Slovakia|Ukraine 1
Bulgaria|Czech Republic|Hungary|Poland|Romania|Slovakia 1
Bulgaria|Finland|Germany|Hungary|Slovakia 1
Bulgaria|Germany|Hungary|Korea, Republic of|Latvia|Lithuania|Macedonia, The Former Yugoslav Republic of|Poland|Romania|Russian Federation|Slovakia|South Africa|Spain|Ukraine|United Kingdom 1
Bulgaria|Germany|Hungary|Ukraine 1
Bulgaria|Germany|Poland|United Kingdom 1
Bulgaria|Japan|Romania|Russian Federation|Ukraine 1
Bulgaria|Romania|Russian Federation 1
Bulgaria|Slovakia 1
Canada|Croatia|Czech Republic|Estonia|France|Germany|Guatemala|India|Korea, Republic of|Latvia|Lithuania|Philippines|Poland|South Africa|Taiwan 1
Canada|Denmark 1
Canada|Denmark|Netherlands|Romania|Ukraine 1
Canada|France|Hungary|India|Korea, Republic of|Latvia|Lithuania|Romania|South Africa|United Kingdom 1
Canada|France|Ireland|Italy|Netherlands|Russian Federation 1
Canada|France|Portugal|Spain 1
Canada|Germany|Hungary|Spain 1
Canada|Germany|Netherlands|Sweden 1
Canada|Germany|Spain 1
Canada|Netherlands|Switzerland 1
Canada|United States|Australia|Germany|Japan|Korea, Republic of|Philippines|Poland|Russian Federation|Slovakia|Taiwan|Ukraine 1
Chile 1
China|Hong Kong|Indonesia|Korea, Republic of|Thailand 1
China|India|Korea, Republic of|Philippines 1
China|Japan|Korea, Republic of 1
China|Korea, Republic of 1
China|Korea, Republic of|Philippines|Taiwan 1
China|Korea, Republic of|Philippines|Taiwan|Thailand 1
China|Korea, Republic of|Taiwan 1
Colombia|Czech Republic|Canada|Denmark|Finland|France|Germany|Hungary|Iceland|India|Italy|Peru|Russian Federation|Slovakia|Taiwan 1
Czech Republic|France|Germany|Hungary|Italy|Peru|Poland|Russian Federation|South Africa|Spain|Ukraine 1
Czech Republic|Germany|Hungary|Korea, Republic of|Malaysia|Poland|Russian Federation|Taiwan 1
Czech Republic|Germany|Hungary|Poland 1
Czech Republic|Poland|United Kingdom 1
Czech Republic|Romania 1
Czechia|Denmark|Germany|Hungary|Netherlands|Poland|Russian Federation|Spain 1
Czechia|Germany|Greece|Netherlands 1
Denmark|Estonia|Finland|Italy|Lithuania|Slovakia|Spain|United Kingdom 1
Denmark|Finland|Germany|Netherlands|United Kingdom 1
Denmark|Finland|Netherlands|Norway 1
Denmark|Finland|Netherlands|Norway|Sweden 1
Denmark|Germany 1
Denmark|Germany|Poland|Sweden|United Kingdom 1
Denmark|Norway|Sweden 1
Estonia|Finland|Germany|Korea, Republic of|Latvia|Lithuania|Netherlands|New Zealand|Russian Federation|Slovenia|South Africa|United Kingdom 1
Estonia|Finland|Germany|Netherlands|Russian Federation|Slovakia 1
Estonia|Germany 1
Finland 1
Finland|Austria|Denmark|France|Slovenia 1
Finland|Germany|Netherlands|Russian Federation|United Kingdom 1
France|Italy 1
France|Italy|Spain|Tunisia 1
France|United States|Belgium|China|Germany|Hong Kong|Italy|Korea, Republic of|Netherlands|Singapore|Spain|Taiwan|United Kingdom 1
Germany|Greece|Italy|Netherlands|Spain|United Kingdom 1
Germany|Hungary|Italy 1
Germany|Italy|South Africa|Switzerland 1
Germany|Netherlands 1
Germany|Netherlands|United Kingdom 1
Germany|Poland 1
Germany|United States|Belgium|Hungary 1
Germany|United States|Bulgaria|Japan|Korea, Republic of|Poland|Romania|Russian Federation|South Africa|Taiwan|Ukraine 1
Germany|United States|Czech Republic|Hungary|India|Slovakia|Spain|Turkey 1
Greece|United States|Finland|Italy|Portugal|Sweden|Turkey|United Kingdom 1
Hong Kong|India|Japan|Korea, Republic of|Singapore|Taiwan 1
Hong Kong|Korea, Republic of|Malaysia|Philippines|Taiwan 1
Iceland 1
India|Japan|Korea, Republic of|Philippines|Poland|Russian Federation|Taiwan|Ukraine|Vietnam 1
Iran, Islamic Republic of 1
Italy|Spain|Sweden 1
Japan|United States|Argentina|Czechia|Germany|Poland|Romania|Russian Federation|Ukraine 1
Korea, Republic of|United States|Australia|Canada|Japan|Netherlands|Romania|Russian Federation|Singapore|Spain|Turkey 1
Malawi|Zimbabwe 1
Malaysia 1
Malaysia|Singapore 1
Malta 1
Mexico 1
Netherlands|South Africa 1
New Zealand|Thailand|United Kingdom 1
Norway|Sweden 1
Peru 1
Slovakia|Ukraine 1
South Africa 1
South Africa|Estonia|Germany|Netherlands|Romania|Russian Federation|Slovakia|Sweden|Ukraine 1
South Africa|United Kingdom 1
Spain|France|Germany 1
Spain|France|Germany|Italy 1
Spain|Sweden 1
United States|Andorra|Argentina|Brazil|Chile|France|Germany|Greece|Ireland|Israel|Italy|Mexico|South Africa|Spain|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|Chile|China|Croatia|Czech Republic|Denmark|Estonia|Finland|France|Germany|Greece|Hong Kong|Hungary|Iceland|Italy|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Pakistan|Philippines|Poland|Puerto Rico|Romania|Russian Federation|Singapore|Slovakia|South Africa|Spain|Sweden|Taiwan|Thailand|Ukraine|United Kingdom| 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|Chile|Colombia|Croatia|Czechia|Denmark|Finland|France|Germany|Greece|Guatemala|Hong Kong|Hungary|India|Ireland|Italy|Japan|Korea, Republic of|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Philippines|Poland|Portugal|Romania|Russian Federation|Serbia|Singapore|Slovakia|Slovenia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|China|Colombia|Croatia|Denmark|Finland|France|Georgia|Germany|Greece|Guatemala|Hungary|India|Ireland|Israel|Italy|Korea, Republic of|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Panama|Peru|Philippines|Poland|Portugal|Puerto Rico|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Tunisia|Turkey|Ukraine|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Chile|China|Colombia|Czechia|Denmark|Finland|France|Germany|Hong Kong|Israel|Japan|Korea, Republic of|Netherlands|New Zealand|Norway|Peru|Philippines|Poland|Puerto Rico|Romania|Russian Federation|Singapore|South Africa|Spain|Sweden|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Chile|China|Czechia|Denmark|Finland|France|Germany|Greece|India|Israel|Italy|Japan|Malaysia|Mexico|Netherlands|Norway|Poland|Portugal|Spain|Sweden|Switzerland|Thailand|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Czech Republic|Denmark|Finland|France|Germany|Greece|Hong Kong|Hungary|Ireland|Italy|Japan|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Philippines|Poland|Portugal|Russian Federation|Singapore|Slovakia|Slovenia|South Africa|Spain|Switzerland|Taiwan|Thailand|Turkey|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Canada|Chile|Germany|Italy|New Zealand 1
United States|Argentina|Australia|Austria|Brazil|Canada|Chile|Colombia|Czechia|Denmark|Germany|Hungary|Italy|Japan|Korea, Republic of|Netherlands|New Zealand|Philippines|Poland|Spain|Sweden|Turkey|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Bulgaria|Canada|China|Croatia|Czechia|Denmark|France|Greece|Italy|Korea, Republic of|Poland|Romania|Spain|Sweden|Taiwan|Ukraine|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Bulgaria|Canada|China|Croatia|Czechia|Denmark|France|Greece|Italy|Korea, Republic of|Poland|Romania|Spain|Taiwan|Ukraine|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Bulgaria|Chile|Colombia|Croatia|Denmark|France|Israel|Mexico|New Zealand|Norway|Peru|Philippines|Poland|Serbia|Slovenia|Sweden|Taiwan|Thailand|Turkey|Ukraine|Vietnam 1
United States|Argentina|Australia|Bulgaria|Canada|Chile|Czech Republic|Hungary|India|New Zealand|Poland|Slovakia|South Africa|Sweden|United Kingdom 1
United States|Argentina|Australia|Bulgaria|Canada|China|Czech Republic|Denmark|Estonia|Finland|France|Germany|Guatemala|Hungary|India|Italy|Japan|Korea, Republic of|Mexico|Netherlands|New Zealand|Portugal|Russian Federation|Slovenia|Turkey 1
United States|Argentina|Australia|Canada|Chile|Denmark|Germany|Italy|Mexico|Netherlands|Peru|South Africa|Spain|Sweden|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Denmark|Germany|Japan|Korea, Republic of|Netherlands|Romania|Slovakia|Taiwan|Ukraine|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Estonia|Germany|Italy|Mexico|Netherlands|Peru|Philippines|South Africa|Sweden|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Germany|Korea, Republic of|Mexico|Romania|South Africa 1
United States|Argentina|Australia|Canada|Chile|Germany|Poland|Russian Federation|Turkey|Ukraine 1
United States|Argentina|Australia|Canada|France|Germany|Italy|Mexico|Netherlands|South Africa|Spain|Sweden 1
United States|Argentina|Australia|Canada|Mexico|New Zealand|South Africa 1
United States|Argentina|Australia|Colombia|Denmark|Germany|Guatemala|Mexico|Philippines|South Africa|Spain|Turkey 1
United States|Argentina|Austria|Belgium|Brazil|Canada|Chile|Denmark|Germany|Italy|Mexico|Norway|Peru|Puerto Rico|Russian Federation|South Africa|Spain|Sweden|United Kingdom 1
United States|Argentina|Austria|Canada|Colombia|Czech Republic|Denmark|Estonia|Finland|France|Germany|Greece|Hungary|India|Ireland|Israel|Italy|Mexico|Netherlands|Peru|Philippines|Poland|Puerto Rico|Russian Federation|Slovakia|South Africa|Spain|United Kingdom 1
United States|Argentina|Austria|Canada|Germany|Netherlands|Russian Federation|Sweden 1
United States|Argentina|Belgium|Canada|Czechia|Germany|Italy|Netherlands|Poland 1
United States|Argentina|Brazil|Chile|Costa Rica|Mexico 1
United States|Argentina|Bulgaria|Canada|Chile|China|Czechia|Denmark|Finland|Germany|Hungary|Israel|Italy|Japan|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Slovakia|Spain|Sweden|Turkey|Ukraine 1
United States|Argentina|Bulgaria|Canada|Chile|Germany|Hungary|Korea, Republic of|Netherlands|Philippines|Romania|South Africa|Thailand|United Kingdom 1
United States|Argentina|Bulgaria|Canada|Czech Republic|Germany|Hungary|Japan|Poland|Slovakia|South Africa|Spain|Sweden|Taiwan 1
United States|Argentina|Bulgaria|Canada|Denmark|Hungary|Mexico|Poland|Russian Federation 1
United States|Argentina|Bulgaria|Canada|Germany|Hungary|Romania|Russian Federation|Spain 1
United States|Argentina|Bulgaria|Croatia|Czechia|Germany|Hungary|Poland|Slovakia|South Africa|Spain|Turkey 1
United States|Argentina|Canada|Chile|Colombia|Italy|Malaysia|Mexico|Peru|Philippines|Romania|Russian Federation|Serbia|Spain|Taiwan|Thailand|Ukraine 1
United States|Argentina|Canada|Chile|Denmark|Estonia|Germany|Korea, Republic of|Mexico|Peru|Philippines|Poland|Russian Federation|Slovakia 1
United States|Argentina|Canada|Chile|Denmark|France|Germany|Italy|Korea, Republic of|Romania|Russian Federation|South Africa|Ukraine 1
United States|Argentina|Canada|Chile|France|Germany|Hungary|Israel|Italy|Korea, Republic of|Mexico|Netherlands|New Zealand|Peru|Poland|Russian Federation 1
United States|Argentina|Canada|Chile|Romania 1
United States|Argentina|Canada|Colombia|Mexico|Peru 1
United States|Argentina|Canada|Finland|France|Germany|Hungary|Italy|Spain|United Kingdom 1
United States|Argentina|Canada|Germany|India|Italy|Korea, Republic of|Puerto Rico|Spain|Sweden|Taiwan|Turkey 1
United States|Argentina|Chile|Greece|Peru|Romania|Ukraine 1
United States|Argentina|Chile|Guatemala|Honduras|Romania 1
United States|Argentina|Chile|Netherlands|Peru|South Africa 1
United States|Argentina|Czechia|Estonia|Germany|Korea, Republic of|Norway|Ukraine 1
United States|Argentina|France|Greece|Korea, Republic of|New Zealand|Poland|Russian Federation|South Africa|Taiwan|Turkey|Ukraine|United Kingdom 1
United States|Argentina|Germany|Russian Federation|Ukraine 1
United States|Argentina|Norway 1
United States|Australia|Austria|Belgium|Canada|Denmark|Germany|New Zealand|Poland|Portugal|United Kingdom 1
United States|Australia|Austria|Brazil|France|Germany|Hungary|New Zealand|Romania|Russian Federation|United Kingdom 1
United States|Australia|Austria|Canada|Finland|France|Greece|Ireland|Italy|Netherlands|New Zealand|Russian Federation|South Africa|Spain|United Kingdom 1
United States|Australia|Austria|Canada|Germany|Greece|New Zealand|Norway|Slovakia|South Africa|Sweden 1
United States|Australia|Belgium|Canada|Czechia|Estonia|France|Greece|Italy|Mexico|Norway|Peru|Poland|Russian Federation|Spain|Sweden 1
United States|Australia|Belgium|Canada|France|Germany|Greece|Netherlands|Norway|Russian Federation|Spain|Sweden|Turkey|United Kingdom 1
United States|Australia|Brazil|Canada|Colombia|Germany|Greece|Romania|Russian Federation|Taiwan|Turkey|Ukraine|United Kingdom 1
United States|Australia|Bulgaria|Canada|France|Germany|Guatemala|Hungary|Japan|Philippines|Poland|Russian Federation|Slovakia|South Africa|Spain|Switzerland|Taiwan|Turkey|United Kingdom 1
United States|Australia|Canada 1
United States|Australia|Canada|Germany|Korea, Republic of|Netherlands|Poland|Romania|Spain 1
United States|Australia|Canada|United Kingdom 1
United States|Australia|China|Germany|New Zealand|Taiwan 1
United States|Australia|New Zealand|Poland|Thailand 1
United States|Austria|Belgium|Brazil|Canada|China|Colombia|Croatia|Germany|Hungary|India|Ireland|Japan|Norway|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Sweden|Taiwan|Turkey|United Kingdom 1
United States|Austria|Belgium|Canada|Colombia|Denmark|Finland|France|Germany|Greece|Hungary|Israel|Italy|Mexico|Norway|Poland|Russian Federation|Slovakia|Spain|Switzerland|Turkey|United Kingdom 1
United States|Austria|Belgium|Netherlands|Switzerland|United Kingdom 1
United States|Austria|Canada|Czechia|Germany|Hungary|Italy|Japan|Korea, Republic of|Netherlands|Poland|Romania|Russian Federation|South Africa|Spain|Switzerland|United Kingdom 1
United States|Austria|Netherlands|United Kingdom 1
United States|Belgium|Canada|Czech Republic|Denmark|Finland|Germany|South Africa|Spain|United Kingdom 1
United States|Belgium|Canada|Czech Republic|Germany|Greece|Netherlands|Portugal|Ukraine|United Kingdom 1
United States|Belgium|Canada|Czechia|Germany|Hungary|Netherlands|Poland|Romania|Russian Federation|United Kingdom 1
United States|Belgium|Canada|Denmark|Germany|Hungary|Netherlands 1
United States|Belgium|Canada|Denmark|Italy|Spain 1
United States|Belgium|Canada|Germany 1
United States|Belgium|Canada|Germany|Netherlands 1
United States|Belgium|Denmark|Estonia|France|Germany|Hungary|Japan|Netherlands|Norway|Philippines|Slovakia|Sweden|Ukraine 1
United States|Belgium|Germany|Hungary|Netherlands|Poland|Spain 1
United States|Belgium|Netherlands 1
United States|Belgium|New Zealand 1
United States|Belgium|Spain 1
United States|Bulgaria|Argentina|Australia|Austria|Belarus|Belgium|Bosnia and Herzegovina|Canada|Chile|China|Colombia|Croatia|Czechia|France|Georgia|Germany|Greece|Hungary|India|Indonesia|Israel|Italy|Japan|Korea, Republic of|Latvia|Macedonia, The Former Yugoslav Republic of|Malaysia|Mexico|Netherlands|Philippines|Poland|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Taiwan|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Bulgaria|Canada|Chile|Czechia|Greece|Japan|Mexico|Poland|Russian Federation|South Africa|Spain|Thailand 1
United States|Bulgaria|Canada|France|Hungary|Russian Federation|Ukraine 1
United States|Bulgaria|Czech Republic|Hungary|Latvia|Lithuania|Philippines|Poland|Ukraine|United Kingdom 1
United States|Bulgaria|Czechia|Germany|Hungary|Israel|Poland|Spain|Ukraine|United Kingdom 1
United States|Bulgaria|Czechia|Germany|Hungary|Italy|Latvia|Poland|Romania|Russian Federation 1
United States|Bulgaria|Estonia|Germany|Russian Federation|United Kingdom 1
United States|Bulgaria|Germany|Hungary|Romania|Russian Federation|Ukraine 1
United States|Canada|Colombia|Czech Republic|Hungary|India|Netherlands|Slovakia|Spain 1
United States|Canada|Czechia|Denmark|South Africa|Ukraine|United Kingdom 1
United States|Canada|Czechia|Germany|Hungary|Korea, Republic of|Poland|Russian Federation 1
United States|Canada|Czechia|Germany|Poland|Romania 1
United States|Canada|Denmark|France|Germany|Israel|Korea, Republic of|Netherlands|Spain|United Kingdom 1
United States|Canada|Denmark|France|Germany|Netherlands|Romania|United Kingdom 1
United States|Canada|Denmark|Germany|Poland|Spain|United Kingdom 1
United States|Canada|Denmark|Germany|United Kingdom 1
United States|Canada|France|Germany|Israel|Italy|Korea, Republic of|Netherlands|Sweden|Switzerland|United Kingdom 1
United States|Canada|France|Germany|Poland|South Africa 1
United States|Canada|France|Poland|South Africa|Spain|United Kingdom 1
United States|Canada|Germany 1
United States|Canada|Germany|Hungary|Korea, Republic of|Mexico|Poland|Russian Federation|Spain|Taiwan 1
United States|Canada|Germany|India|Italy|Poland|South Africa|Spain 1
United States|Canada|Germany|Netherlands|Spain 1
United States|Canada|Italy 1
United States|Chile|Estonia|Germany|Japan|Korea, Republic of|Mexico|Philippines|Poland|Russian Federation 1
United States|Chile|Estonia|Russian Federation 1
United States|Chile|Mexico|Norway|Romania|Russian Federation|South Africa 1
United States|Chile|Romania|Russian Federation|Slovakia|South Africa 1
United States|China|Germany|Taiwan 1
United States|Czech Republic|Germany|Korea, Republic of 1
United States|Czech Republic|Germany|Poland|Romania|South Africa 1
United States|Czechia|Germany 1
United States|Czechia|Germany|Netherlands 1
United States|Czechia|Germany|Poland|Romania|Russian Federation 1
United States|Czechia|Hungary|Russian Federation 1
United States|Finland|Israel|Italy|Japan|Korea, Republic of|Portugal|Spain|Sweden|United Kingdom 1
United States|France|Germany|Italy|Mexico|Peru|Poland|Romania|Russian Federation|Ukraine 1
United States|France|Germany|Netherlands|Spain|Turkey 1
United States|Germany|Italy|Romania|United Kingdom 1
United States|Germany|Italy|South Africa|Spain|Ukraine 1
United States|Germany|Japan 1
United States|Germany|Korea, Republic of|Norway|Philippines|Thailand 1
United States|Germany|Netherlands|Norway 1
United States|Germany|Romania|Russian Federation|Ukraine 1
United States|Germany|South Africa 1
United States|Germany|Spain|United Kingdom 1
United States|Honduras 1
United States|Netherlands|United Kingdom 1
United States|Poland|Russian Federation 1

Sites per Study

Site_count Study_Count
1 820
2 98
3 30
4 26
5 30
6 24
7 10
8 14
9 11
10 12
11 10
12 8
13 8
14 13
15 7
16 4
17 9
18 7
19 11
20 11
21 6
22 4
23 3
24 4
25 3
26 4
27 9
28 3
29 6
30 3
31 7
32 6
33 3
34 4
35 5
36 2
37 6
38 1
39 4
40 6
41 2
42 2
43 5
44 3
45 5
46 1
47 1
48 3
49 4
50 4
51 4
52 3
53 4
54 7
55 3
56 2
57 3
58 1
59 2
60 5
61 1
62 2
64 2
65 1
66 3
67 1
68 1
69 1
70 1
71 1
72 3
73 2
74 1
75 1
76 1
77 1
78 3
79 1
80 1
81 1
83 2
86 1
88 1
90 2
91 1
92 1
93 3
94 4
96 1
97 4
98 1
99 1
100 2
103 2
105 1
106 2
107 1
110 1
112 2
113 1
115 1
116 2
118 1
119 1
120 3
121 1
125 1
126 1
127 1
130 1
132 3
134 1
137 1
138 1
139 1
140 1
143 1
144 1
149 1
153 1
157 1
160 2
163 1
165 1
166 2
170 1
176 1
177 1
178 2
179 1
180 2
183 2
188 1
197 1
208 1
212 1
213 1
222 2
238 1
239 1
240 1
247 1
248 1
260 1
270 1
282 1
287 1
338 1
345 2
356 1
409 1
459 1
490 1
818 1
999 1
1191 1
1621 1

Phase

Phase Study_Count
N/A 544
Phase 3 337
Phase 2 235
Phase 4 192
Phase 1 80
Phase 2/Phase 3 25
Phase 1/Phase 2 23
Early Phase 1 12

Number of Arms

Number_of_Arms Count_of_Studies
1 198
2 785
3 144
4 80
5 44
6 25
7 7
8 10
9 3
10 2
12 3
16 1
NA 146

Number of Updates

Count of Versions Count of Studies
1 138
2 161
3 180
4 151
5 125
6 110
7 71
8 78
9 61
10 40
11 33
12 29
13 26
14 16
15 18
16 10
17 14
18 13
19 9
20 11
21 10
22 5
23 10
24 8
25 8
26 9
27 4
28 2
29 3
30 3
31 6
32 4
33 4
34 2
35 4
36 1
37 4
38 4
39 3
40 1
41 1
43 1
44 3
45 6
48 2
49 4
50 2
52 1
53 2
54 2
55 4
56 4
57 1
58 1
59 3
61 2
64 1
67 1
72 1
73 1
74 1
81 1
82 1
88 2
89 1
92 1
94 1
100 1
103 1
114 1
142 1
145 1
150 1
158 1
161 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 12683 1310 9.681679
Contacts/Locations 6312 1134 5.566138
Recruitment Status 2092 1123 1.862867
Study Design 1630 1009 1.615461
None (earliest Version on record) 1448 1448 1.000000
Outcome Measures 1365 771 1.770428
Study Identification 958 562 1.704626
Arms 911 585 1.557265
Interventions 911 585 1.557265
Eligibility 883 491 1.798371
Sponsor/Collaborators 847 568 1.491197
Study Description 797 503 1.584493
More Information 616 235 2.621277
Oversight 540 434 1.244240
References 425 311 1.366559
Conditions 381 239 1.594142
Results 356 356 1.000000
Baseline Characteristics 262 159 1.647799
IPDSharing 219 202 1.084158
Participant Flow 117 108 1.083333
Reported Adverse Events 117 102 1.147059
Results Submission Events 94 94 1.000000
Documents 61 59 1.033898
2020 Study Status 3 3 1.000000
2020 Documents 1 1 1.000000
2020 Outcome Measures 1 1 1.000000
Quality Control Review has not concludedReturned: April 17 1 1 1.000000
Quality Control Review has not concludedReturned: April 7 1 1 1.000000
Quality Control Review has not concludedReturned: February 20 1 1 1.000000
Quality Control Review has not concludedReturned: March 31 1 1 1.000000
Quality Control Review has not concludedReturned: March 9 1 1 1.000000

Enrollment Metrics by Phase

Measure Early.Phase.1 N.A Phase.1 Phase.1.Phase.2 Phase.2 Phase.2.Phase.3 Phase.3 Phase.4
Min. 5.00000 3.00 5.00000 6.00000 1.0000 20.00 14.0000 4.0000
1st Qu. 11.50000 29.25 15.00000 24.00000 38.5000 51.00 150.0000 48.7500
Median 20.00000 60.00 25.00000 35.00000 74.0000 120.00 429.0000 125.0000
Mean 78.41667 187832.98 39.31646 70.95652 157.4217 263.44 808.3292 286.0573
3rd Qu. 58.00000 121.75 45.50000 70.50000 185.5000 243.00 902.5000 279.2500
Max. 341.00000 99999999.00 198.00000 527.00000 2080.0000 2059.00 17183.0000 2696.0000

Trial Group Type

group_type Group_Count
Experimental 1664
Active Comparator 655
Placebo Comparator 444
No Intervention 163
Other 160
NA 146
Sham Comparator 32

Intervention Model

intervention_model Study_Count
Parallel Assignment 882
Crossover Assignment 286
Single Group Assignment 229
NA 32
Factorial Assignment 13
Sequential Assignment 6

Primary Purpose

primary_purpose Study_Count
Treatment 1009
Supportive Care 98
Prevention 79
Diagnostic 70
Basic Science 59
Other 59
Health Services Research 34
NA 28
Screening 7
Device Feasibility 3
Educational/Counseling/Training 2

Observational Studies

Studies by Country

Country Study_Count
NA 198
United States 121
Germany 36
France 27
United Kingdom 26
Canada 19
China 18
Belgium 10
Italy 10
Spain 10
Korea, Republic of 9
Sweden 9
Norway 8
Switzerland 8
Taiwan 8
Japan 7
Netherlands 7
Brazil 6
Greece 6
Israel 6
Turkey 6
Denmark 5
Ireland 4
Singapore 4
Austria 3
United States|Canada 3
Costa Rica 2
Egypt 2
Hong Kong 2
Qatar 2
Russian Federation 2
Argentina|Bangladesh|Brazil|Canada|Chile|China|Colombia|India|Iran, Islamic Republic of|Kazakhstan|Kyrgyzstan|Malaysia|Pakistan|Palestinian Territory, occupied|Peru|Philippines|Poland|Russian Federation|Saudi Arabia|South Africa|Sweden|Tanzania|Turkey|United Arab Emirates|Zimbabwe 1
Argentina|Colombia|Uruguay|Venezuela 1
Australia 1
Australia|China|Korea, Republic of|Taiwan 1
Australia|Germany 1
Australia|New Zealand|United Kingdom 1
Australia|United States|Argentina|Brazil|Canada|China|Colombia|Denmark|France|Germany|Italy|Japan|Korea, Republic of|Mexico|Netherlands|Norway|Spain|Sweden|United Kingdom 1
Austria|Belgium|Denmark|Finland|France|Germany|Greece|Ireland|Italy|Netherlands|Norway|Portugal|Spain|Sweden|Switzerland|Turkey|United Kingdom 1
Austria|Czechia|Hungary|Israel|Romania|Russian Federation|Slovakia|Slovenia|Switzerland 1
Austria|Germany 1
Belgium|Denmark|Finland|Germany|Netherlands|Norway 1
Belgium|France|Germany|Netherlands|Poland|Spain 1
Belgium|Greece|Netherlands|United Kingdom 1
Bulgaria 1
Bulgaria|Czechia|Hungary|Israel|Lithuania|Poland|Romania|Russian Federation|Slovenia|Switzerland|Ukraine 1
Canada|France 1
Croatia 1
Czechia 1
Denmark|France|Germany 1
Egypt|Germany|India|Sri Lanka 1
Germany|India|Sri Lanka 1
Hungary|Slovakia|Slovenia 1
India 1
Kazakhstan 1
Kyrgyzstan 1
Netherlands|United Kingdom 1
Spain|Croatia|Denmark|Ireland|Italy|Netherlands|Norway|Portugal|Sweden|United Kingdom 1
Thailand 1
United States|Australia 1
United States|Belgium|Canada|Denmark|Finland|Germany|Japan|Korea, Republic of|Poland|Spain|Sweden|United Kingdom 1
United States|Bulgaria|Canada|Czech Republic|Denmark|Netherlands|New Zealand|Norway|Slovenia|Spain|Ukraine|United Kingdom 1
United States|Bulgaria|Canada|Czech Republic|France|Germany|Italy|Russian Federation|Sweden 1
United States|Germany|Italy 1
United States|Puerto Rico 1

Sites per Study

Site_count Study_Count
1 501
2 32
3 9
4 8
5 5
6 3
7 1
8 4
9 3
10 1
12 1
13 1
14 1
15 3
16 2
17 1
18 1
19 4
20 4
21 1
22 1
23 1
26 3
32 1
34 1
40 1
41 1
42 1
44 1
47 2
51 1
57 1
60 1
79 1
90 1
108 1
123 1
141 1
169 1
177 1
185 1
188 1
233 1
298 1
352 1
388 1
418 1
605 1
606 1

Number of Updates

Count of Versions Count of Studies
1 84
2 105
3 146
4 92
5 39
6 34
7 14
8 15
9 12
10 8
11 5
12 8
13 5
14 4
15 5
16 6
17 1
18 2
19 2
20 3
21 6
22 3
23 1
26 2
27 1
29 1
30 1
32 1
36 1
38 1
39 1
43 1
49 1
56 1
68 1
83 1
95 1
103 1
119 1
141 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 3132 534 5.865169
Contacts/Locations 1058 333 3.177177
None (earliest Version on record) 618 618 1.000000
Study Design 578 365 1.583562
Recruitment Status 518 353 1.467422
Study Description 515 226 2.278761
Study Identification 427 260 1.642308
Eligibility 362 255 1.419608
Sponsor/Collaborators 284 201 1.412935
Outcome Measures 230 149 1.543624
Oversight 182 141 1.290780
References 161 98 1.642857
Groups 109 88 1.238636
Interventions 109 88 1.238636
Conditions 84 58 1.448276
More Information 64 17 3.764706
IPDSharing 40 39 1.025641
Results 28 28 1.000000
Documents 16 14 1.142857
Baseline Characteristics 15 12 1.250000
Reported Adverse Events 7 6 1.166667
Participant Flow 4 4 1.000000
Results Submission Events 4 4 1.000000

Enrollment Metrics

Measure Observational
Min 1.00
1st Qu 76.00
Median 214.50
Mean 420512.80
3rd Qu 897.75
Max 99999999.00

Observation Model

observational_model Study_Count
Cohort 293
NA 151
Case-Only 57
Case-Control 36
Other 31
Case Control 30
Family-Based 6
Case-Crossover 5
Natural History 4
Defined Population, Natural History 3
Ecologic or Community 2

Time Perspective

time_perspective Study_Count
Prospective 325
NA 131
Cross-Sectional 77
Retrospective 72
Other 8
Cross-Sectional, Prospective 2
Longitudinal 1
Longitudinal, Prospective 1
Longitudinal, Retrospective 1

Registries

Studies by Country

Country Study_Count
United States 6
China 3
Germany 3
Korea, Republic of 3
Brazil 2
Turkey 2
United Kingdom 2
Austria 1
Austria|Bulgaria|Croatia|Czech Republic|Hungary|Latvia|Poland|Russian Federation|Serbia|Slovakia|Slovenia 1
Austria|France|Germany|Italy|United Kingdom 1
Belgium 1
Canada 1
Finland 1
France 1
France|Germany|Italy|Turkey|United Kingdom 1
NA 1
Netherlands 1
Poland 1
Russian Federation 1
Taiwan 1
Tunisia 1
United States|Puerto Rico 1

Sites per Study

Site_count Study_Count
1 27
3 2
4 1
5 1
7 1
42 1
47 1
81 1
180 1

Number of Updates

Count of Versions Count of Studies
1 10
2 5
3 6
4 10
5 2
14 1
22 1
23 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 111 26 4.269231
Contacts/Locations 64 20 3.200000
None (earliest Version on record) 36 36 1.000000
Recruitment Status 26 15 1.733333
Study Design 24 14 1.714286
Outcome Measures 15 11 1.363636
Study Description 15 8 1.875000
References 13 4 3.250000
Eligibility 11 5 2.200000
Study Identification 11 6 1.833333
Conditions 10 4 2.500000
Oversight 10 8 1.250000
Sponsor/Collaborators 10 6 1.666667
Groups 4 2 2.000000
Interventions 4 2 2.000000
IPDSharing 2 2 1.000000
Documents 1 1 1.000000

Enrollment Metrics

Measure Registries
Min 20.00
1st Qu 100.00
Median 475.00
Mean 3082.25
3rd Qu 2000.00
Max 75000.00

Registry Model

observational_model Study_Count
Cohort 26
Case-Only 5
Other 3
Case-Control 2

Time Perspective

time_perspective Study_Count
Prospective 27
Cross-Sectional 5
Other 4

Follow-up

target_duration Study_Count
1 Day 5
1 Year 5
10 Years 5
5 Years 5
1 Month 2
12 Months 2
15 Years 2
3 Years 2
4 Years 2
2 Days 1
4 Weeks 1
6 Months 1
60 Months 1
7 Months 1
8 Years 1